CN110740526B - Heating device for material heat conduction performance characterization - Google Patents
Heating device for material heat conduction performance characterization Download PDFInfo
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- CN110740526B CN110740526B CN201910904788.1A CN201910904788A CN110740526B CN 110740526 B CN110740526 B CN 110740526B CN 201910904788 A CN201910904788 A CN 201910904788A CN 110740526 B CN110740526 B CN 110740526B
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 71
- 239000000463 material Substances 0.000 title claims abstract description 31
- 238000012512 characterization method Methods 0.000 title claims description 15
- 238000007789 sealing Methods 0.000 claims abstract description 25
- 238000004804 winding Methods 0.000 claims description 44
- 238000004891 communication Methods 0.000 claims description 13
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 4
- 229910052802 copper Inorganic materials 0.000 claims description 4
- 239000010949 copper Substances 0.000 claims description 4
- 238000005485 electric heating Methods 0.000 claims 3
- 238000012360 testing method Methods 0.000 abstract description 9
- 238000005259 measurement Methods 0.000 abstract description 5
- 239000007789 gas Substances 0.000 abstract description 2
- 239000007788 liquid Substances 0.000 abstract description 2
- 239000007787 solid Substances 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 13
- 238000013461 design Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 239000010453 quartz Substances 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N25/00—Investigating or analyzing materials by the use of thermal means
- G01N25/18—Investigating or analyzing materials by the use of thermal means by investigating thermal conductivity
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/02—Details
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/02—Details
- H05B3/06—Heater elements structurally combined with coupling elements or holders
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/10—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor
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Abstract
The invention discloses a heating device for representing the heat conduction performance of a material, which comprises a spherical heat conduction shell, wherein a hollow cavity is arranged in the heat conduction shell, a support hole penetrates through the wall of the heat conduction shell, a support rod penetrates through the support hole, the outer end of the support rod extends out of the heat conduction shell, the inner end of the support rod extends into the hollow cavity and is connected with a heating component, and a gap is arranged between the heating component and the inner wall of the heat conduction shell. The invention has the obvious effects that a uniform and stable test heating source can be provided when the heat-conducting property of the material is represented and measured; and has good sealing performance, thereby being applied to the heat conduction measurement of solid, liquid and gas media.
Description
Technical Field
The invention relates to a heat conduction measuring device, in particular to a component for a material heat conduction capability characterization device.
Background
The heat conductivity coefficient is a measurement for representing the strength of the heat conductivity of the material, and has an important guiding function on production, life and engineering application. The current methods for testing the heat conductivity coefficient of the material include a heat flow method, a hot plate method, a laser flash method, a transient plane heat source method and the like, and the method is a testing device which is adaptive to various testing methods. However, the methods have the defects of long time consumption and high cost; the testing device has the advantages of complex structure, high equipment cost and complex operation. In the teaching and testing process, only approximate evaluation of the heat-conducting property of the material is needed, and the traditional equipment and method are obviously not economical.
Disclosure of Invention
In view of the above, the present invention provides a heat generating device applied to a material thermal conductivity characterization device, which can be used as a stable and uniform heat generating source of a thermal conductivity measurement device.
The technical scheme is as follows:
a heat-generating device for characterizing the heat conduction performance of a material is characterized in that: the heat conduction device comprises a spherical heat conduction shell, wherein a hollow cavity is arranged in the heat conduction shell, a supporting hole penetrates through the wall of the heat conduction shell, a supporting rod penetrates through the supporting hole, the outer end of the supporting rod extends out of the heat conduction shell, the inner end of the supporting rod extends into the hollow cavity and is connected with a heating component, and a gap is formed between the heating component and the inner wall of the heat conduction shell.
Technical scheme more than adopting, heating element heats the heat conduction casing with the form of heat radiation to the temperature that makes the heat conduction casing can be fast and stable.
As a preferred technical scheme, the brace rod comprises a brace rod body, the brace rod body is arranged in the support hole in a penetrating manner along the diameter direction of the heat-conducting shell, a limiting ring is fixed in the middle of the brace rod body, the limiting ring is positioned in the heat-conducting shell, a spherical abutting surface matched with the inner wall of the heat-conducting shell is arranged on the limiting ring, an inner-side sealing washer is sleeved on the brace rod body outside the limiting ring, and the spherical abutting surface tightly presses the inner-side sealing washer on the inner wall of the heat-conducting shell;
the heat conduction device is characterized in that a locking nut is sleeved on the support rod body in a threaded manner and located outside the heat conduction shell, an outer side sealing washer is sleeved on the support rod body between the locking nut and the heat conduction shell, and the outer side sealing washer is tightly pressed on the outer wall of the heat conduction shell through the locking nut.
According to the technical scheme, the limiting rings and the locking nuts are clamped on the inner side and the outer side of the heat conducting shell, so that the two ends of the support rod body are both in a suspended state, and the heating component is suspended.
The heating assembly comprises a winding support, the winding support is connected with the inner end of the support rod body, a winding seat is arranged on the winding support, a heating wire is wound on the winding seat, two ends of the heating wire are respectively connected with a heating power line, and the heating power line penetrates out of the heat conduction shell.
The winding support comprises a supporting rod, the supporting rod is perpendicular to the supporting rod body, the middle of the supporting rod is fixedly connected with the inner end of the supporting rod body, elastic clamping pieces are fixed at two ends of the supporting rod respectively, the winding seat is arranged between the elastic clamping pieces at two ends of the supporting rod and is cylindrical, two ends of the winding seat are abutted to the elastic clamping pieces respectively, a thread-shaped winding groove is formed in the outer wall of the winding seat, and the heating wire is wound in the winding groove.
By adopting the technical scheme, the heating wire is convenient to arrange and the winding seat is convenient to disassemble and assemble.
Limiting depressions are respectively formed in the end faces of the two ends of the winding seat, limiting chucks are respectively arranged on the elastic clamping pieces corresponding to the limiting depressions, and the limiting chucks fall into the corresponding limiting depressions. The design enables the winding seat to be stably clamped between the two elastic clamping pieces.
Be equipped with the spacing hole of two power cords on the branch, two the spacing hole of power cord is close to respectively the branch both ends, the spacing hole of power cord is the round platform form, the big footpath end orientation in the spacing hole of power cord the wire winding seat the spacing downthehole fixed cover that is equipped with of inlaying respectively of power cord should fixed cover with the spacing hole phase-match of power cord, wear to be equipped with in the fixed cover the heating power cord, the inner wall of fixed cover with the solidification that bonds between the heating power cord.
Above technical scheme can guarantee that the tie point of heating power cord and heating wire is difficult for pulling out.
The heat conduction shell is characterized in that a power line through hole is formed in the support rod body along the axial direction of the support rod body, the outer end of the power line through hole penetrates out of the outer end face of the support rod body, the inner end of the power line through hole extends to the position of the limiting ring, an inclined communication hole is formed in the limiting ring, one end of the inclined communication hole is communicated with the power line through hole, the other end of the inclined communication hole extends out of the limiting ring, and a heating power line sequentially penetrates through the inclined communication hole and the power line through hole to penetrate out of the heat conduction shell.
The design ingeniously solves the problem that the heating power line leads out the heat conduction shell, and the sealing problem during independent lead wire is avoided.
The heat conduction shell comprises two hemispherical shells which are buckled with each other;
the annular end surfaces of the two hemispherical shells are respectively integrally formed with a pair of retaining rings, wherein one of the pair of retaining rings is positioned at the edge of the inner ring of the corresponding annular end surface, so that an inner retaining ring is formed; the other pair of retaining rings is positioned at the outer ring edge of the corresponding annular end surface, so that an outer retaining ring is formed;
the outer wall of the inner retaining ring is abutted against the inner wall of the outer retaining ring, a circle of buckling limiting ring is arranged on the inner wall of the outer retaining ring in the circumferential direction, a circle of buckling limiting groove is arranged on the outer wall of the inner retaining ring in the corresponding circumferential direction, and the buckling limiting ring falls into the buckling limiting groove;
the outer end face of the pair of snap rings is tightly abutted against the annular end face of the other hemispherical shell, the outer end face of the pair of snap rings and the annular end face abutted against the outer end face of the pair of snap rings are simultaneously provided with annular sealing ring grooves, and sealing rings are arranged in the sealing ring grooves.
The edge of each of the two hemispherical shells is provided with a buckling notch, and the buckling notches of the two hemispherical shells are correspondingly arranged to form the support hole.
Adopt this design, be convenient for set up other parts in the heat conduction casing to be convenient for open two hemisphere casings from lock breach, solved the dismouting problem.
The heat conduction shell is a copper ball shell. The heat conducting shell is made of red copper, has good heat conductivity, can conduct heat uniformly in a short time, and enables the heat conducting shell to form an isothermal body with equal (nearly equal) temperature everywhere.
Has the advantages that: the heating device for representing the heat conduction performance of the material can provide a uniform and stable test heating source when representing and measuring the heat conduction performance of the material; and has good sealing performance, thereby being applied to the heat conduction measurement of solid, liquid and gas media.
Drawings
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic view of the connection relationship between the stay bar 12 and the heat generating component 13;
fig. 3 is a schematic view of the installation relationship between the stay 12 and the heat-conducting shell 11;
fig. 4 is a schematic structural diagram of the heat generating component 13;
FIG. 5 is an enlarged view of the portion j of FIG. 4;
fig. 6 is a schematic structural diagram of the heat-conducting casing 11;
FIG. 7 is an enlarged view of section i of FIG. 6;
FIG. 8 is a schematic structural view of the present invention;
FIG. 9 is an enlarged view of the section k of FIG. 8;
fig. 10 is a schematic view of the connection relationship between the first temperature sensing module 2, the second temperature sensing module 5, and the control display module 3.
Detailed Description
The invention is further illustrated by the following examples and figures.
As shown in fig. 1 to 7:
the utility model provides a device that generates heat for material heat conductivity can sign, includes globular heat conduction casing 11, is equipped with hollow cavity 1a in this heat conduction casing 11 run through on the wall of heat conduction casing 11 and has worn to be equipped with vaulting pole 12 in this support hole 11a, and the outer end of this vaulting pole 12 stretches out heat conduction casing 11, and the inner of this vaulting pole 12 stretches into hollow cavity 1a is connected with heating element 13, heating element 13 with be equipped with the clearance between the inner wall of heat conduction casing 11. In order to make the heat conducting shell 11 form a uniform isothermal body quickly, the heat conducting shell 11 is a copper ball shell.
The stay bar 12 comprises a stay bar body 121, the stay bar body 121 is arranged in the support hole 11a in a penetrating manner along the diameter direction of the heat-conducting shell 11, a limit ring 122 is fixed in the middle of the stay bar body 121, the limit ring 122 is positioned in the heat-conducting shell 11, a spherical abutting surface matched with the inner wall of the heat-conducting shell 11 is arranged on the limit ring 122, an inner-side sealing washer 123 is sleeved on the stay bar body 121 outside the limit ring 122, and the spherical abutting surface presses the inner-side sealing washer 123 against the inner wall of the heat-conducting shell 11;
a locking nut 124 is sleeved on the stay bar body 121 in a threaded manner, the locking nut 124 is positioned outside the heat conduction shell 11, an outer sealing washer 125 is sleeved on the stay bar body 121 between the locking nut 124 and the heat conduction shell 11, and the locking nut 124 presses the outer sealing washer 125 against the outer wall of the heat conduction shell 11; a power line via hole is axially formed in the stay bar body 121, an outer end of the power line via hole penetrates out of an outer end face of the stay bar body 121, an inner end of the power line via hole extends to the position of the limit ring 122, an inclined communication hole is formed in the limit ring 122, one end of the inclined communication hole is communicated with the power line via hole, the other end of the inclined communication hole extends out of the limit ring 122, and the heating power line 14 sequentially penetrates through the inclined communication hole and the power line via hole and penetrates out of the heat conduction shell 11.
The heating assembly 13 includes a winding bracket 131, the winding bracket 131 is connected to the inner end of the stay rod body 121, a winding seat 132 is disposed on the winding bracket 131, a heating wire 133 is wound on the winding seat 132, two ends of the heating wire 133 are respectively connected to a heating power line 14, and the heating power line 14 penetrates through the heat conducting shell 11; the winding bracket 131 comprises a supporting rod 131a, the supporting rod 131a is perpendicular to the supporting rod body 121, the middle of the supporting rod 131a is fixedly connected with the inner end of the supporting rod body 121, elastic clamping pieces 131b are respectively fixed at two ends of the supporting rod 131a, the winding seat 132 is arranged between the elastic clamping pieces 131b at two ends of the supporting rod 131a, the winding seat 132 is cylindrical, two ends of the winding seat 132 are respectively abutted against the elastic clamping pieces 131b, a thread-shaped winding groove is arranged on the outer wall of the winding seat 132, and the heating wire 133 is wound in the winding groove; limiting depressions are respectively formed in the end faces of two ends of the winding seat 132, limiting chucks 131c are respectively arranged on the elastic clamping pieces 131b corresponding to the limiting depressions, and the limiting chucks 131c fall into the corresponding limiting depressions.
Be equipped with two spacing holes of power cord on branch 131a, two the spacing hole of power cord is close to respectively branch 131a both ends, the spacing hole of power cord is the round platform form, the big footpath end orientation in the spacing hole of power cord wire reel seat 132 the spacing downthehole fixed cover 131e of inlaying respectively of power cord should fixed cover 131e with the spacing hole phase-match of power cord, wear to be equipped with in the fixed cover 131e heating power cord 14, the inner wall of fixed cover 131e with it is fixed to bond through high temperature resistant glue between the heating power cord 14.
For convenience of assembly, the heat conducting shell 11 includes two hemispherical shells 111, and the two hemispherical shells 111 are fastened to each other;
the outer wall of the inner retaining ring is abutted against the inner wall of the outer retaining ring, a circle of buckling limiting ring 114 is arranged on the inner wall of the outer retaining ring in the circumferential direction, a circle of buckling limiting groove is arranged on the outer wall of the inner retaining ring in the corresponding circumferential direction, and the buckling limiting ring 114 falls into the buckling limiting groove;
the outer end face of the pair of retaining rings 112 abuts against the annular end face of the other hemispherical shell 111, the outer end face of the pair of retaining rings 112 and the annular end face abutting against the outer end face are simultaneously provided with annular sealing ring grooves, and the sealing rings 113 are arranged in the annular sealing ring grooves.
The edges of the two hemispherical shells 111 are respectively provided with a buckling notch, and the buckling notches of the two hemispherical shells are correspondingly arranged to form the support hole 11 a.
Fig. 8, 9 and 10 show a heat conduction measuring device formed by the present invention, which includes a box a and a control display module 3, wherein a first temperature sensing module 2 and a heating device for material heat conduction performance characterization according to the present invention are disposed in the box a, the heating device for material heat conduction performance characterization and the first temperature sensing module 2 are disposed at an interval, and the heating device for material heat conduction performance characterization, the first temperature sensing module 2 and the control display module 3 are connected; the material of wire winding seat 132 is quartz, wire winding support 131 is the stainless steel, vaulting pole body 121 inner is quartz, vaulting pole body 121 outer end is high temperature resistant plastics material.
A heat source mounting hole is formed in any side wall of the box body a, the outer end of the stay bar body 121 is inserted into the heat source mounting hole, a sealing cylinder 15 is arranged between the outer wall of the stay bar body 121 and the hole wall of the heat source mounting hole, the outer wall of the stay bar body 121 is bonded and sealed with the inner wall of the sealing cylinder 15, a waterproof ring is annularly sleeved on the outer wall of the sealing cylinder 15 and is tightly attached to the hole wall of the heat source mounting hole, the heating power line 14 extends out of the box body a through the heat source mounting hole, and the heat-conducting shell 11 is suspended in the box body a through the stay bar body 121;
the support rod body 121 is horizontally arranged, a temperature sensing cantilever 25 is arranged on the side wall of the box body a opposite to the heat source mounting hole, the temperature sensing cantilever 25 is horizontally arranged, the temperature sensing cantilever 25 and the support rod body 121 are positioned on the same straight line, the outer end of the temperature sensing cantilever 25 is fixedly connected with the inner side wall of the box body a, and the inner end of the temperature sensing cantilever 25 is provided with the first temperature sensing module 2.
Further, the first temperature sensing module 2 includes a first temperature sensor 21 and a first emitter 22, a signal output terminal of the first temperature sensor 21 is electrically connected to a signal input terminal of the first emitter 22, the first temperature sensor 21 is located on an extension line of the stay bar body 121, and the first temperature sensor 21 is provided with a sensor power supply;
the control display module 3 is positioned outside the box body a, the control display module 3 comprises a controller 33, a receiver 31 is connected to a signal receiving end of the controller 33, and a display screen 32 is connected to a display control end of the controller 33;
the signal output end of the first transmitter 22 is wirelessly connected with the signal input end of the receiver 31, and the signal output end of the receiver 31 is connected with the controller 33;
a second temperature sensing module 5 is further disposed on the outer wall of the heat conducting shell 11, the second temperature sensing module 5 includes a second temperature sensor 51 and a second emitter 52, the second temperature sensor 51 is attached to the outer wall of the heat conducting shell 11, the second temperature sensor 51 is located on an extension line of the stay bar body 121, the second temperature sensor 51 is provided with a sensor power supply, a signal output end of the second temperature sensor 51 is connected with a signal input end of the second emitter 52, and a signal output end of the second emitter 52 emits a wireless signal to the receiver 31; the first and second transmitters 22 and 52 are in communication with the receiver 31 in advance.
The heating power line 14 is connected with a heating power supply, an on-off switch 15 is arranged on the heating power line 14 between the heating power supply and the heating component 13, and the on-off switch 15 receives and executes a switching signal sent to the on-off switch by the controller 33.
The heating power supply can select two heating modes for the heat-conducting shell 11:
the first heating mode is constant-temperature heating; specifically, the target temperature of the heat conducting shell 11 is set to be a certain fixed value, the second temperature sensor 51 is used for measuring the temperature of the heat conducting shell 11 and heating the heating component 13 in real time through the controller 33, and when the temperature measured by the second temperature sensor 51 is lower than or higher than the set target temperature, the controller 33 controls the on-off switch 15 to be turned on and off, so that the temperature of the heat conducting shell 11 is kept to be the set temperature value, and the heat conducting shell 11 forms an isothermal heating body;
the second heating mode is constant pressure heating; specifically, for the same heating wire 133, the resistance value is constant, and the heating power supply supplies a constant voltage to the same heating wire 133, so that the heating amount of the heating wire 133 is ensured to be constant, and the heat-conducting shell 11 is heated in a heat radiation manner, in this heating method, the temperature change of the heat-conducting shell 11 is not concerned, and only the on-off switch 15 is controlled to be turned on or off when the measurement is started and ended, and the power of the heating wire 133 is kept constant, so that the heat-conducting shell 11 forms an equal-energy heating body.
When measuring the heat conductivity/heat conductivity of various materials, the following three methods can be specifically classified:
firstly, fixing the position of the first temperature sensing module 2, so that the distance between the first temperature sensor 21 and the second temperature sensor 51 is fixed, and measuring and drawing a change curve of the temperature measured by the first temperature sensor 21 and the temperature measured by the second temperature sensor 51 along with time;
fixing the position of the first temperature sensing module 2, so that the distance between the first temperature sensor 21 and the second temperature sensor 51 is fixed, and measuring and drawing to obtain a time-varying curve of the temperature difference measured by the first temperature sensor 21 and the second temperature sensor 51;
the third method is that a plurality of first temperature sensing modules 2 are arranged, and the plurality of first temperature sensing modules 2 are distributed along the diameter direction of the second temperature sensor 51, so that the first temperature sensors 21 are arranged at positions with different distances from the second temperature sensor 51, a change curve of the temperature difference measured by the plurality of first temperature sensors 21 and the second temperature sensor 51 along with the distance at the same moment is measured and drawn, and the temperature sensing cantilever 25 is also provided with scale marks along the length thereof.
For example, when the constant temperature heating and measuring method (i) is used to measure the heat conductivity/heat conductivity of the material, the first temperature sensor 21 is used to measure the temperature of the material at different positions and different times, and feed the test result back to the controller 33, and finally the test result can be displayed on the display screen 32 at set time intervals, and the readings of the display screen 32 are recorded in time sequence, and the heat conductivity of the material can be measured and compared by drawing a curve.
Finally, it should be noted that the above-mentioned description is only a preferred embodiment of the present invention, and those skilled in the art can make various similar representations without departing from the spirit and scope of the present invention.
Claims (9)
1. A heat-generating device for characterizing the thermal conductivity of a material, comprising: the heat conduction device comprises a spherical heat conduction shell (11), wherein a hollow cavity (1 a) is arranged in the heat conduction shell (11), a support hole (11 a) penetrates through the wall of the heat conduction shell (11), a support rod (12) penetrates through the support hole (11 a), the outer end of the support rod (12) extends out of the heat conduction shell (11), the inner end of the support rod (12) extends into the hollow cavity (1 a) and is connected with a heating component (13), and a gap is formed between the heating component (13) and the inner wall of the heat conduction shell (11);
the supporting rod (12) comprises a supporting rod body (121), the supporting rod body (121) penetrates through the supporting hole (11 a) along the diameter direction of the heat-conducting shell (11), a limiting ring (122) is fixed in the middle of the supporting rod body (121), the limiting ring (122) is located in the heat-conducting shell (11), a spherical abutting surface matched with the inner wall of the heat-conducting shell (11) is arranged on the limiting ring (122), an inner-side sealing gasket (123) is sleeved on the supporting rod body (121) on the outer side of the limiting ring (122), and the spherical abutting surface presses the inner-side sealing gasket (123) on the inner wall of the heat-conducting shell (11);
the utility model discloses a heat conduction device, including vaulting pole body (121) go up the thread bush and be equipped with lock nut (124), this lock nut (124) are located outside heat conduction shell (11), this lock nut (124) with between heat conduction shell (11) the cover is equipped with outside seal ring (125) on vaulting pole body (121), lock nut (124) will outside seal ring (125) compress tightly the outer wall of heat conduction shell (11).
2. The heat-generating device for material thermal conductivity characterization of claim 1, wherein: the heating assembly (13) comprises a winding support (131), the winding support (131) is connected with the inner end of the support rod body (121), a winding seat (132) is arranged on the winding support (131), an electric heating wire (133) is wound on the winding seat (132), two ends of the electric heating wire (133) are respectively connected with a heating power line (14), and the heating power line (14) penetrates out of the heat conduction shell (11).
3. The heat-generating device for material thermal conductivity characterization of claim 2, wherein: the winding support (131) comprises a supporting rod (131 a), the supporting rod (131 a) is perpendicular to the supporting rod body (121), the middle of the supporting rod (131 a) is fixedly connected with the inner end of the supporting rod body (121), elastic clamping pieces (131 b) are fixed at two ends of the supporting rod (131 a) respectively, the winding seat (132) is arranged between the elastic clamping pieces (131 b) at two ends of the supporting rod (131 a), the winding seat (132) is cylindrical, two ends of the winding seat (132) are tightly abutted to the elastic clamping pieces (131 b) respectively, a thread-shaped winding groove is formed in the outer wall of the winding seat (132), and the electric heating wire (133) is wound in the winding groove.
4. The heat-generating device for material thermal conductivity characterization of claim 3, wherein: limiting depressions are respectively formed in the end faces of two ends of the winding seat (132), limiting clamping heads (131 c) are respectively arranged on the elastic clamping pieces (131 b) corresponding to the limiting depressions, and the limiting clamping heads (131 c) fall into the corresponding limiting depressions.
5. The heat-generating device for material thermal conductivity performance characterization according to claim 3 or 4, characterized in that: be equipped with two spacing holes of power cord on branch (131 a), two spacing hole of power cord is close to respectively branch (131 a) both ends, the spacing hole of power cord is the round platform form, the big footpath end orientation in the spacing hole of power cord wire winding seat (132) the spacing downthehole fixed cover (131 e) of inlaying respectively of power cord, this fixed cover (131 e) with the spacing hole phase-match of power cord, wear to be equipped with in fixed cover (131 e) heating power cord (14), the inner wall of fixed cover (131 e) with it is fixed to bond between heating power cord (14).
6. The heat-generating device for material thermal conductivity performance characterization according to claim 2, 3 or 4, characterized in that: the heat conducting support rod is characterized in that a power line through hole is formed in the support rod body (121) along the axial direction of the support rod body, the outer end of the power line through hole penetrates out of the outer end face of the support rod body (121), the inner end of the power line through hole extends to the position of the limiting ring (122), an inclined communication hole is formed in the limiting ring (122), one end of the inclined communication hole is communicated with the power line through hole, the other end of the inclined communication hole extends out of the limiting ring (122), and a heating power line (14) sequentially penetrates through the inclined communication hole and the power line through hole and penetrates out of the heat conducting shell (11).
7. The heat-generating device for material thermal conductivity performance characterization according to claim 1, 2, 3 or 4, characterized in that: the heat conduction shell (11) comprises two hemispherical shells (111), and the two hemispherical shells (111) are buckled with each other;
two pairs of snap rings (112) are integrally formed on the annular end surfaces of the two hemispherical shells (111), wherein one snap ring (112) is positioned on the inner ring edge of the corresponding annular end surface, so that an inner snap ring is formed; the other snap ring pair (112) is positioned at the outer ring edge of the corresponding annular end surface, so as to form an outer snap ring;
the outer wall of the inner retaining ring is abutted against the inner wall of the outer retaining ring, a circle of buckling limiting ring (114) is arranged on the inner wall of the outer retaining ring in the circumferential direction, a circle of buckling limiting groove is arranged on the outer wall of the inner retaining ring in the corresponding circumferential direction, and the buckling limiting ring (114) falls into the buckling limiting groove;
the outer end face of the pair of snap rings (112) is tightly abutted to the annular end face of the other semispherical shell (111), the outer end face of the pair of snap rings (112) and the annular end face abutted to the outer end face are simultaneously provided with annular sealing ring grooves, and sealing rings (113) are arranged in the sealing ring grooves.
8. The heat-generating device for material thermal conductivity characterization of claim 7, wherein: buckling notches are respectively arranged at the edges of the two hemispherical shells (111), and the buckling notches of the two hemispherical shells are correspondingly arranged to form the supporting hole (11 a).
9. The heat-generating device for material thermal conductivity performance characterization according to claim 1, 2, 3 or 4, characterized in that: the heat conduction shell (11) is a copper ball shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004198032A (en) * | 2002-12-19 | 2004-07-15 | Thermo Riko:Kk | Simple space heater |
| CN201107287Y (en) * | 2007-10-31 | 2008-08-27 | 北新集团建材股份有限公司 | Mineral wool slab experience box |
| CN205648028U (en) * | 2015-12-22 | 2016-10-12 | 广东顺德光晟电器股份有限公司 | Non -metallic pipe that directly appears form heater and formula metal connecting piece combination formula electrothermal tube that sinks |
| CN206164866U (en) * | 2016-10-12 | 2017-05-10 | 英光股份有限公司 | Heating bulb |
| CN107062369A (en) * | 2017-06-15 | 2017-08-18 | 中创杰能（天津）科技有限公司 | A kind of novel photoelectric heating plant |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20180338350A1 (en) * | 2017-05-19 | 2018-11-22 | Lg Electronics Inc. | Carbon heater |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004198032A (en) * | 2002-12-19 | 2004-07-15 | Thermo Riko:Kk | Simple space heater |
| CN201107287Y (en) * | 2007-10-31 | 2008-08-27 | 北新集团建材股份有限公司 | Mineral wool slab experience box |
| CN205648028U (en) * | 2015-12-22 | 2016-10-12 | 广东顺德光晟电器股份有限公司 | Non -metallic pipe that directly appears form heater and formula metal connecting piece combination formula electrothermal tube that sinks |
| CN206164866U (en) * | 2016-10-12 | 2017-05-10 | 英光股份有限公司 | Heating bulb |
| CN107062369A (en) * | 2017-06-15 | 2017-08-18 | 中创杰能（天津）科技有限公司 | A kind of novel photoelectric heating plant |
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